2017ApJ...834..122G

Query : 2017ApJ...834..122G

2017ApJ...834..122G - Astrophys. J., 834, 122-122 (2017/January-2)

Massive star formation in the LMC. I. N159 and N160 complexes.

GORDON M.S., JONES T.J., GEHRZ R.D. and HELTON L.A.

Abstract (from CDS):

We present images and spectral energy distributions (SEDs) of massive young stellar objects (YSOs) in three star-forming H II regions of the Large Magellanic Cloud: N159A, N159 Papillon, and N160. We use photometry from SOFIA/FORCAST at 25.3-37.1 µm to constrain model fits to the SEDs and determine luminosities, ages, and dust content of the embedded YSOs and their local environments. By placing these sources on mid-infrared color-magnitude and color-color diagrams, we analyze their dust properties and consider their evolutionary status. Since each object in the FORCAST images has an obvious bright near-infrared counterpart in Spitzer Space Telescope images, we do not find any evidence for new, very cool, previously undiscovered Class 0 YSOs. Additionally, based on its mid-infrared colors and model parameters, N159A is younger than N160 and the Papillon. The nature of the first extragalactic protostars in N159, P1, and P2, is also discussed.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): H II regions - Magellanic Clouds - stars: formation - stars: formation

VizieR on-line data: <Available at CDS (J/ApJ/834/122): table2.dat table3.dat>

Nomenclature: Fig. 3, Table 2: [GJG2017] N159A A (Nos A-E). Fig. 4, Table 2: [GJG2017] N159 Papillon A (Nos A-C). Fig. 5, Table 2: [GJG2017] N160 A (Nos A-F).

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7066 0
2 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 255 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
4 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1190 2
5 NGC 2074 As* 05 39 03 -69 29.9           ~ 62 0
6 LHA 120-N 158 HII 05 39 11.220 -69 30 13.65           ~ 87 0
7 LHA 120-N 159W MoC 05 39 32.510 -69 46 02.74           ~ 92 0
8 [JWB2005] 8 Y*O 05 39 36.082 -69 46 03.91     17.79 17.01   ~ 11 0
9 2MASS J05393712-6945370 Y*O 05 39 37.127 -69 45 37.02           ~ 12 0
10 2MASS J05393755-6946094 Y*O 05 39 37.556 -69 46 09.43     17.49 16.96 17.641 ~ 10 0
11 [GC2009] J053937.56-694525.3 Y*O 05 39 37.56 -69 45 25.3           ~ 12 0
12 2MASS J05393871-6939039 Y*O 05 39 38.715 -69 39 03.93           ~ 4 0
13 NGC 2079 Cl* 05 39 39.0 -69 46 24           ~ 64 0
14 2MASS J05393911-6939118 Y*O 05 39 39.112 -69 39 11.90           ~ 5 0
15 2MASS J05394188-6946122 Y*O 05 39 41.886 -69 46 12.21           O6.5V 19 1
16 2MASS J05394329-6938542 Y*O 05 39 43.2529685136 -69 38 54.340770984           ~ 4 0
17 NAME LHA 120-N 160A IR Y*O 05 39 43.822 -69 38 33.84           ~ 14 1
18 [GC2009] J053944.33-693847.5 Y*O 05 39 44.33 -69 38 47.5           ~ 4 0
19 2MASS J05394591-6938386 Y*O 05 39 45.917 -69 38 38.66           ~ 6 0
20 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 276 2
21 LHA 120-N 160 EmO 05 39 47.9 -69 37 08           ~ 119 1
22 LH 104 As* 05 39 59 -69 24.1   10.13 9.94     ~ 40 0
23 2MASS J05395936-6945263 Y*O 05 39 59.363 -69 45 26.31           ~ 14 0
24 NAME N159 Blob in LMC HII 05 40 04.2 -69 44 43           ~ 38 0
25 2MASS J05400448-6944375 Y*O 05 40 04.4515637664 -69 44 37.685464944           ~ 12 0
26 [MHD2004] 517 Y*O 05 40 09.49 -69 44 53.5           ~ 10 0
27 LHA 120-N 159E MoC 05 40 10.980 -69 44 35.84           ~ 58 0
28 NAME LMC 2 Supergiant Shell sh 05 41 27 -69 22.4           ~ 191 0
29 LEDA 43295 EmG 12 48 49.0468317360 -42 04 45.502928328   16.51   15.45   ~ 4 0
30 M 20 OpC 18 02 42 -22 58.3           ~ 434 1
31 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1615 0
32 AGAL G034.411+00.234 Y*O 18 53 18.0319 +01 25 25.500           ~ 94 0
33 AGAL G034.401+00.226 cor 18 53 18.6 +01 24 40           ~ 63 1

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